Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States
In this report we present a new numerical approach and complex analysis of electron beam propagation based on a realistic model of an optimised imaging spherical deflector analyser. Electron beam trajectory simulations, carried out for real experimental boundaries, enabled us to reveal and explain t...
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| Format: | Article |
| Language: | English |
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VSB-Technical University of Ostrava
2021-01-01
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| Series: | Advances in Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://advances.utc.sk/index.php/AEEE/article/view/4289 |
| _version_ | 1827947474271076352 |
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| author | Gabriel Armando Ceballos Krzysztof Piotr Grzelakowski |
| author_facet | Gabriel Armando Ceballos Krzysztof Piotr Grzelakowski |
| author_sort | Gabriel Armando Ceballos |
| collection | DOAJ |
| description | In this report we present a new numerical approach and complex analysis of electron beam propagation based on a realistic model of an optimised imaging spherical deflector analyser. Electron beam trajectory simulations, carried out for real experimental boundaries, enabled us to reveal and explain the unique optical properties which were employed in the instrumental optimisation followed by empirical, spectromicroscopic applications. In terms of numerical treatment, it was possible to verify the low-aberration imaging in reciprocal and real spaces at π and 2π, respectively, and the advantage of energy-selective visualisation of the k-space. Furthermore, this unique feature has been proven and confirmed experimentally by implementing the HeI/HeII monochromatic photon source into our improved spectromicroscopic system and by the energy-selective visualisation of an electronic state projection in the reciprocal plane. A clear correlation between a numerically simulated electronic projection and an experimentally-obtained k-space imaging has been demonstrated. |
| first_indexed | 2024-04-09T12:40:31Z |
| format | Article |
| id | doaj.art-30bf1ea93723464f94e4acc474492424 |
| institution | Directory Open Access Journal |
| issn | 1336-1376 1804-3119 |
| language | English |
| last_indexed | 2024-04-09T12:40:31Z |
| publishDate | 2021-01-01 |
| publisher | VSB-Technical University of Ostrava |
| record_format | Article |
| series | Advances in Electrical and Electronic Engineering |
| spelling | doaj.art-30bf1ea93723464f94e4acc4744924242023-05-14T20:50:13ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192021-01-0119436938210.15598/aeee.v19i4.42891139Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic StatesGabriel Armando Ceballos0Krzysztof Piotr Grzelakowski1Department of Microelectronics and Nanotechnology, Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, ul. Dluga 63, 53-633 Wroclaw, PolandDepartment of Microelectronics and Nanotechnology, Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, ul. Dluga 63, 53-633 Wroclaw, PolandIn this report we present a new numerical approach and complex analysis of electron beam propagation based on a realistic model of an optimised imaging spherical deflector analyser. Electron beam trajectory simulations, carried out for real experimental boundaries, enabled us to reveal and explain the unique optical properties which were employed in the instrumental optimisation followed by empirical, spectromicroscopic applications. In terms of numerical treatment, it was possible to verify the low-aberration imaging in reciprocal and real spaces at π and 2π, respectively, and the advantage of energy-selective visualisation of the k-space. Furthermore, this unique feature has been proven and confirmed experimentally by implementing the HeI/HeII monochromatic photon source into our improved spectromicroscopic system and by the energy-selective visualisation of an electronic state projection in the reciprocal plane. A clear correlation between a numerically simulated electronic projection and an experimentally-obtained k-space imaging has been demonstrated.http://advances.utc.sk/index.php/AEEE/article/view/4289aberrationsdeemelectron microscopynumerical simulations. |
| spellingShingle | Gabriel Armando Ceballos Krzysztof Piotr Grzelakowski Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States Advances in Electrical and Electronic Engineering aberrations deem electron microscopy numerical simulations. |
| title | Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States |
| title_full | Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States |
| title_fullStr | Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States |
| title_full_unstemmed | Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States |
| title_short | Electron Optical Optimisation of an Imaging Energy Analyser: Real Model Field- and Trajectory Simulations Applied to k-Space Visualisation of Electronic States |
| title_sort | electron optical optimisation of an imaging energy analyser real model field and trajectory simulations applied to k space visualisation of electronic states |
| topic | aberrations deem electron microscopy numerical simulations. |
| url | http://advances.utc.sk/index.php/AEEE/article/view/4289 |
| work_keys_str_mv | AT gabrielarmandoceballos electronopticaloptimisationofanimagingenergyanalyserrealmodelfieldandtrajectorysimulationsappliedtokspacevisualisationofelectronicstates AT krzysztofpiotrgrzelakowski electronopticaloptimisationofanimagingenergyanalyserrealmodelfieldandtrajectorysimulationsappliedtokspacevisualisationofelectronicstates |